Update: The launch was postponed due to stormy weather. Full story here.

CAPE CANAVERAL, Florida (AP) — With bad weather threatening a delay, two NASA astronauts suited up for the launch of a SpaceX rocket ship Wednesday on a history-making flight to the International Space Station that was seen as a giant leap forward for the booming business of commercial space travel.

Space veterans Doug Hurley and Bob Behnken were scheduled to ride into orbit aboard the brand-new Dragon capsule on top of a Falcon 9 rocket, lifting off at 4:33 p.m. EDT from the same launch pad used by the Apollo moon missions a half-century ago.

The flight would mark the first time a private company sent humans into orbit. It would also be the first time in nearly a decade that the United States launched astronauts into orbit from U.S. soil.